7x+12=3x+20

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Solution for 7x+12=3x+20 equation:


Simplifying
7x + 12 = 3x + 20

Reorder the terms:
12 + 7x = 3x + 20

Reorder the terms:
12 + 7x = 20 + 3x

Solving
12 + 7x = 20 + 3x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-3x' to each side of the equation.
12 + 7x + -3x = 20 + 3x + -3x

Combine like terms: 7x + -3x = 4x
12 + 4x = 20 + 3x + -3x

Combine like terms: 3x + -3x = 0
12 + 4x = 20 + 0
12 + 4x = 20

Add '-12' to each side of the equation.
12 + -12 + 4x = 20 + -12

Combine like terms: 12 + -12 = 0
0 + 4x = 20 + -12
4x = 20 + -12

Combine like terms: 20 + -12 = 8
4x = 8

Divide each side by '4'.
x = 2

Simplifying
x = 2

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